const formatTime = date => {
  const year = date.getFullYear()
  const month = date.getMonth() + 1
  const day = date.getDate()
  const hour = date.getHours()
  const minute = date.getMinutes()
  const second = date.getSeconds()

  return `${[year, month, day].map(formatNumber).join('/')} ${[hour, minute, second].map(formatNumber).join(':')}`
}

const formatNumber = n => {
  n = n.toString()
  return n[1] ? n : `0${n}`
}

const isJSON = (str) => {
  if (typeof str === 'string') {
    try {
      let obj=JSON.parse(str);
      if(typeof obj === 'object' && obj ){
        return true;
      }else{
        return false;
      }
    } catch(e) {
      return false;
    }
  }
  return false;
}

module.exports = {
  formatTime,
  isJSON
}
